Lately i start to write some research-kind article about aos4 internals from the 3d party coder perpective, and while i still works on it, i found that few parts of articles can fits to some small ones, about different aspects. Just something which can be interesting to read for some beginners. And so, as result i just make first one, which cover some first steps with GDB, for someone who not familiar with it, or just want something aos4 specific only.